You might as well compare with these Back Items so you can decide which Back Items you're gonna use for ninja Saga Pvp or in Hunting House for easier killing the boss or your opponent in ninja saga PvP
These Back Items might have better effect . Here we go :

• Cornucopia

  Increase healing power of scrolls by 100%. Has 6% chance to convert damage taken to HP positively.
• Screw Pattern Skis
• Ninja Snowman

  3% chance to convert damage taken to HP positively.
• Clear Cross

  Increase 3% purify chance. Each turn recover 150 HP and 150 CP.
• Super Rabbit Doll

  Increase damage by 9%.
• Master Scroll

  Restores HP & CP by 3%.
• Triple Taiko

  Increases Max. HP by 4% and healing power of scrolls by 100%.
• Fire Symbol Guitar
• Jaws

  Ignore 4% targets dodge.
• Ancient Pipe

  5% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Hanami Taiko

  2011 Hanami Festival - Rhythm! Recover HP & CP by 10 every turn.
• Champion Cup!

  Ultimate prize for Champions.
• Samurai Painted Wood

  5% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Grand Light Gourd

  Increase 3% damage
• Lucky Chess

  Has 5% chance to freeze enemy who attacks user (3 turn). Frozen target cannot move but damage taken is reduced by 80%. Each turn recover 100 HP and 100 CP.
• Bronze Torch of Zeus

  Increase mission XP reward by 200
• Ocean Ring

  Increase 1% accuracy.
  Additional 2 HP damage upon all attack.
• Peom Fan

  Reduce 46 HP damage taken.
• Zombie Hand

  Increase attack damage by 15%. But each turn reduce 200 HP and 300 CP.
• S42 Hanbing Hammer

  8% chance to convert damage taken to HP positively.
• Extra Large Presents Bag

  A large present bag, but nobody knows what it contains.
• Scroll: Kochin
• Radish Launcher

  It will fly you to the moon! (Easter 2011 Limited Edition)
• S72 Hero Twin Axe

  Increase 12% Combustion Chance and recover 3% HP at the start of every turn. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.
• Lovely Santa Bag

  A bag that resembles Santa Claus, it emanates faint revitalizing aura. Restores 140 HP and 30 CP at the start of every turn.
• Angel Heart (White)

  16% chance to absorb 2% HP of enemy who attack you.